<template>
  <div id="root">
    <div class="todo-container">
      <div class="todo-wrap">
        <Header />
        <Content
          :todoList="todoList"
          :singleChange="singleChange"
          :singleDelete="singleDelete"
        />
        <Footer />
      </div>
    </div>
  </div>
</template>

<script>
  import { nanoid } from "nanoid";
  import Header from "./components/Header";
  import Content from "./components/Content";
  import Footer from "./components/Footer";
  export default {
    name: "App",
    components: {
      Header,
      Content,
      Footer,
    },
    data() {
      return {
        todoList: [
          {
            id: nanoid(),
            thing: "skiing",
            done: false,
          },
          {
            id: nanoid(),
            thing: "skating",
            done: false,
          },
          {
            id: nanoid(),
            thing: "swimming",
            done: false,
          },
        ],
      };
    },
    methods: {
      // 改变单个选中状态
      singleChange(id) {
        this.todoList.forEach((item) => {
          if (item.id === id) {
            item.done = !item.done;
          }
        });
      },
      // 删除单个
      singleDelete(index) {
        this.todoList.splice(index, 1);
      },
    },
  };
</script>

<style>
  /*base*/
  body {
    background: #fff;
  }

  .btn {
    display: inline-block;
    padding: 4px 12px;
    margin-bottom: 0;
    font-size: 14px;
    line-height: 20px;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
      0 1px 2px rgba(0, 0, 0, 0.05);
    border-radius: 4px;
  }

  .btn-danger {
    color: #fff;
    background-color: #da4f49;
    border: 1px solid #bd362f;
  }

  .btn-danger:hover {
    color: #fff;
    background-color: #bd362f;
  }

  .btn:focus {
    outline: none;
  }

  .todo-container {
    width: 600px;
    margin: 0 auto;
  }
  .todo-container .todo-wrap {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
  }
</style>
